- Exclusion criteria listed in the Research Criteria for Tardive Dyskinesia as defined in DSM-IV (symptoms not due to another neurological or general medical condition such as Huntington's disease, Sydenham's chorea, spontaneous dyskinesia, hyperthyroidism, Wilson's disease, ill-fitting dentures, exposure to other medications causing acute reversible dyskinesia such as L?dopa or bromocriptine).